Junior Java Developer jobs in Southampton

You will be a senior developer responsible for the development of new software products and enhancements to existing products.

You should excel in working with large-scale applications and frameworks and have outstanding communication and leadership skills. You’ll be responsible for:

Senior Java EFX Platform Developer Location: Fully Remote (UK-based) Contract: 12 Months (likely extension) Industry: Investment Banking / FX E-Trading The Opportunity We're partnering with a leading investment bank on a major greenfield build - a brand-new, in-house FX E-Trading platform. This multi-year programme is at an early stage, offering the chance to help shape architecture,...

We are looking for a skilled Senior Java Developer with hands-on experience in modern Java frameworks, cloud technologies, and containerized environments. The ideal candidate will be responsible for designing, developing, and maintaining scalable applications leveraging Java 17+, Spring Boot, Docker, and AWS. Key Responsibilities: - Design, develop, and maintain robust backend services using...

My client is a global leading Digital Consultancy specialising in Cloud Adoption, Digital Architecture/Transformation & NextGen AI Solutions, with offices in London, Manchester, Newcastle and Glasgow, providing flexi working model (option of remote or hybrid with ad hoc client site travel). They are looking for a Senior Java Full Stack Engineer's (Jnr-Mid level) to join a rapidly growing team,...

Java Developer – Product Engineering £60,000 – £90,000 | Remote-first (monthly meet-up in Midlands office) We’re working with a fast-growing software company that’s transforming how businesses manage complex financial workflows. Their AI-first platform helps customers simplify operations, increase transparency, and make smarter decisions — and they’re scaling quickly as demand grows. They’re...

Senior Software Developer - Java / Python with Delphi We’re looking for an experienced Software Engineer (Java/Python) to join a high-profile government project focused on modernising and integrating complex systems within a secure environment. You’ll work across backend development, integration and automation – with occasional support for legacy Delphi components as part of wider platform...

Overview We are looking for a motivated and detail-oriented Junior Software Developer to join our growing team. This role is ideal for someone eager to learn, contribute to real-world projects, and grow their skills in software development while working alongside experienced professionals. Responsibilities - Assist in the design, development, testing, and maintenance of software...

ABOUT REFLO Reflo (WWW.REFLO.COM) have burst onto the apparel scene to bridge the gap between sustainable clothing and high-performance premium sportswear. Our goals are monumental and go beyond selling a lot of gear - we aim to plant 1 million trees and recycle over 5 million plastic bottles in our first 5 years. That is something we can all be proud of. We are a start-up that has achieved...

Job Description Junior Dynamics 365 CE Developer Southampton - Hybrid (1-2 days a week). We are working with a forward-thinking Dynamics 365 CRM end user who are seeking a Junior Dynamics Developer to play a key role in developing and enhancing the organisations D365 CE system utilising Power Platform tools! Responsibilities - Assist with the development, configuration, and ongoing...

Since 2014, Novade has been helping leading companies in construction, civil engineering, industry, and energy to digitalise their field operations. With more than 100,000 users across thousands of projects in Europe, Asia, and Africa , Novade is transforming how teams manage quality, safety, and productivity on site. We’re also a pioneer in applying AI to predict and mitigate risks...

You will have the opportunity to contribute towards externally published SDKs for use by third party developers, including producing documentation and related materials for others to follow.

You will deal with a broad stack of cutting edge technology and gain invaluable experience with building robust processes for handling data in very large volumes.

You will creatively solve complex problems during dynamic and meaningful projects.

You will write clean, efficient, and well-documented code, troubleshoot and debug issues with existing software, participate in code reviews and provide feedback and new ideas, ironing out the project requirements or planning on how to tackle challenges.

🚀 Senior Java Engineer (Kafka, Spring Boot, Microservices) We’re hiring a Senior Java Engineer to build secure, real-time systems using Java, Spring Boot, and Apache Kafka. You’ll design scalable event-driven microservices, collaborate across the stack, and shape a platform used in mission-critical environments. If you’re a hands-on backend engineer passionate about distributed systems,...

Java Developer – High-Performance Trading Systems - Fully Remote - up to £100k base About the Company We’re a fast-growing proprietary trading firm operating across multiple global cryptocurrency exchanges. Founded by a team with deep experience in financial markets and algorithmic trading, we’ve already achieved top-tier market-maker status, handling trading volumes exceeding $100M per month —...

Technical Architect (AWS Java) Remote UK to £100k Are you a hands-on Technical Architect with strong Java coding skills and experience architecting and operating large scale systems on AWS? You could be progressing your career as a Technical Architect at a growing tech company that provide a range of IoT and Data solutions for the Emergency Services. As the Technical Architect you'll take...

Do you enjoy building real-world software that gets shipped — then sticking around to make sure it actually works? Do you get satisfaction from solving production issues just as much as writing shiny new features? Looking for a role that’s Java through and through, with a supportive team and proper engineering standards? We’re working with one of our favourite clients, a software specialist...

Senior Java Software Engineer 📍Remote UK | 🌍 Global Fintech | 💳 Merchant-First Payments Ecosystem A high-growth global fintech, renowned for delivering world-class payments-related software and technology, is looking to expand its engineering team. As the company continues to scale its platform to meet growing demand, they’re seeking experienced engineers to join their collaborative,...

You will be a hands-on technical expert helping us deliver projects in a true DevOps manner.

You will apply a software engineering mindset to problems, whether that’s provisioning services, writing code or writing automation tools and scripts.

You will have a lean mindset, striving to build reliable and performant services that are operationally sound.

About Apexon: Apexon brings together distinct core competencies – in AI, analytics, app development, cloud, commerce, CX, data, DevOps, IoT, mobile, quality engineering and UX, and our deep expertise in BFSI, healthcare, and life sciences – to help businesses capitalize on the unlimited opportunities digital offers. Our reputation is built on a comprehensive suite of engineering services, a...

My client is a global leading Digital Consultancy specialising in Cloud Adoption, Digital Architecture/Transformation & NextGen AI Solutions, with offices in London, Manchester, Newcastle and Glasgow, providing flexi working model (option of remote or hybrid with ad hoc client site travel). They are looking for two Java Full Stack Engineer's (Jnr-Mid level) to join a rapidly growing team,...